Promissory Notes Law & Legal Definition. Promissory Note: A promissory note is a written promise to pay a debt. An unconditional promise to pay on demand or at a fixed or determined future time a particular sum of money to or to the order of a specified person or to the bearer. promissory note should have several essential elements, including the amount of the loan, the date by which it is to be paid back, the interest rate, and a record of any collateral that is being used to secure the loan.
Definition of CALCULATOR for Kids. 1. : a person who calculates. 2. : a usually small electronic device for solving mathematical problems.earn More About CALCULATOR. Spanish Central: Spanish translation of calculator. Nglish: Translation of calculator for Spanish speakers. Britannica English: Translation of calculator for Arabic speakers. Britannica.com: Encyclopedia article about calculator.
Titration, also known as titrimetry, is a common laboratory method of quantitative chemical analysis that is used to determine the unknown concentration of an identified analyte.Since volume measurements play a key role in titration, it is also known as volumetric analysis.A reagent, called the titrant or titrator is prepared as a standard solution. A known concentration and volume of titrant reacts with a solution of analyte or titrand to determine concentration.n assay is a form of biological titration used to determine the concentration of a virus or bacterium. Serial dilutions are performed on a sample in a fixed ratio (such as 1:1, 1:2, 1:4, 1:8, etc.) until the last dilution does not give a positive test for the presence of the virus.